1. 冰冷的;凉透的
    If something that should be warm is stone-cold, it is very cold.

    e.g. Hillsden took a sip of tea, but it was stone cold.
           希尔斯登啜了一口茶，但茶是冰冷的。

2. 滴酒未沾的;完全清醒的
    If someone is stone-cold sober, they are not drunk at all.

1. completely cold

    e.g. by the time he got back to his coffee it was stone-cold